Generally speaking actions are neither good or evil. They’re neutral. The Satan & demon possessed can do just about any action a Christian can.
The more significant question is, what is the motive & spirit behind actions. For God looks on the heart.
For example, in one of the Clint Eastwood Westerns he (Blondie) is dying of thirst in the desert. Chico offers him water from a purely selfish motive, i.e. filthy lucre.
There are many other evil motives as to why the wicked do outwardly superficial (pharisaical) good deeds. Motives they may not be aware of because they lack knowledge of what’s in their own hearts & are decieved.
Acts 26:18 to open their eyes, so that they may turn from darkness to light and from the power of Satan to God, that they may receive forgiveness of sins and an inheritance among those sanctified by faith in Me.’
Mt.7:11 If you then, being evil, know how to give good gifts to your children, how much more will your Father who is in heaven give what is good to those who ask Him!
Jn.3:19 This is the judgment, that the Light has come into the world, and men loved the darkness rather than the Light, for their deeds were evil.
Jn.7:7 The world cannot hate you, but it hates Me, because I testify that its works are evil.
Mt.12:34 O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.
Titus 3:3 For we also once were foolish ourselves, disobedient, deceived, enslaved to various lusts and pleasures, spending our life in malice and envy, hateful, hating one another.
Eph.2:1 And you were dead in your trespasses and sins, 2 in which you formerly walked according to the course of this world, according to the prince of the power of the air, of the spirit that is now working in the sons of disobedience. 3 Among them we too all formerly lived in the lusts of our flesh, indulging the desires of the flesh and of the mind, and were by nature children of wrath, even as the rest.
Eph.5:6 Let no one deceive you with empty words, for because of such things God’s wrath comes on the sons of disobedience.
Col.1:21 You, being in past times alienated and enemies in your mind in your evil works,
Isa.9:17 Therefore the Lord does not take pleasure in their young men, Nor does He have pity on their orphans or their widows; For every one of them is godless and an evildoer, And every mouth is speaking foolishness
Jn.2:23 Now when he was in Jerusalem at the passover, in the feast day, many believed in his name, when they saw the miracles which he did. 24 But Jesus did not commit himself unto them, because he knew all men, 25 And needed not that any should testify of man: for he knew what was in man.